:root {
  --bg: #0a0a0a;
  --bg-2: #111111;
  --fg: #e8e4dd;
  --fg-2: #8a857e;
  --accent: #c9f73e;
  --accent-dim: rgba(201, 247, 62, 0.08);
  --border: rgba(232, 228, 221, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.5rem 2.5rem;
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: 'Fraunces', serif;
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.nav-tagline {
  font-size: 0.75rem;
  color: var(--fg-2);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 8rem 2.5rem 5rem;
  position: relative;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hero-eyebrow {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.hero-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(3.5rem, 8vw, 7rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 2rem;
  color: var(--fg);
}

.hero-headline em {
  font-style: italic;
  color: var(--accent);
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--fg-2);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

.hero-meta {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hero-tag {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--fg-2);
  border: 1px solid var(--border);
  padding: 0.35rem 0.75rem;
  border-radius: 2rem;
}

.hero-rule {
  max-width: 1200px;
  margin: 4rem auto 0;
  height: 1px;
  background: var(--border);
}

/* Manifesto */
.manifesto {
  padding: 6rem 2.5rem;
  border-bottom: 1px solid var(--border);
}

.manifesto-inner {
  max-width: 720px;
  margin: 0 auto;
}

.manifesto-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 2.5rem;
}

.manifesto-body p {
  font-family: 'Fraunces', serif;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.7;
  color: var(--fg);
  margin-bottom: 1.75rem;
  font-weight: 300;
}

.manifesto-body p:last-child {
  color: var(--fg-2);
  font-size: 1rem;
}

/* The Book */
.thebook {
  padding: 6rem 2.5rem;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
}

.thebook-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.section-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.thebook-title {
  font-family: 'Fraunces', serif;
  font-size: clamp(3rem, 5vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.thebook-author {
  font-size: 0.85rem;
  color: var(--fg-2);
  margin-bottom: 1.5rem;
}

.thebook-desc {
  font-size: 1rem;
  color: var(--fg-2);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.thebook-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  border: 1px solid rgba(201, 247, 62, 0.2);
  padding: 0.3rem 0.7rem;
  border-radius: 2rem;
}

/* Book mockup */
.book-mock {
  display: flex;
  aspect-ratio: 3/4;
  max-width: 280px;
  margin: 0 auto;
  position: relative;
}

.book-mock-spine {
  width: 30px;
  background: var(--accent);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem 0.3rem;
}

.book-mock-spine span {
  font-family: 'Fraunces', serif;
  font-size: 0.5rem;
  font-weight: 900;
  color: var(--bg);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  letter-spacing: 0.1em;
}

.book-mock-author {
  font-size: 0.45rem !important;
  font-weight: 400 !important;
}

.book-mock-cover {
  flex: 1;
  background: var(--fg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem 1.5rem;
  gap: 0.5rem;
}

.book-mock-cover span {
  font-family: 'Fraunces', serif;
  font-size: 2rem;
  font-weight: 900;
  color: var(--bg);
  letter-spacing: -0.03em;
}

.book-mock-cover p {
  font-family: 'Fraunces', serif;
  font-size: 0.6rem;
  color: var(--fg-2);
  font-style: italic;
  text-align: center;
}

/* Philosophy */
.philosophy {
  padding: 6rem 2.5rem;
  border-bottom: 1px solid var(--border);
}

.philosophy-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-top: 3rem;
}

.philosophy-item {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.philosophy-num {
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 1rem;
}

.philosophy-item h3 {
  font-family: 'Fraunces', serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.philosophy-item p {
  font-size: 0.9rem;
  color: var(--fg-2);
  line-height: 1.7;
}

/* Closing */
.closing {
  padding: 8rem 2.5rem;
  text-align: center;
}

.closing-inner {
  max-width: 800px;
  margin: 0 auto;
}

.closing-headline {
  font-family: 'Fraunces', serif;
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.closing-sub {
  font-size: 1rem;
  color: var(--fg-2);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Footer */
.footer {
  padding: 3rem 2.5rem;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: 'Fraunces', serif;
  font-weight: 900;
  font-size: 0.9rem;
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--fg-2);
}

/* Buy button */
.thebook-buy {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.btn-buy {
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--accent);
  color: var(--bg);
  text-decoration: none;
  padding: 0.9rem 1.75rem;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: opacity 0.2s;
}

.btn-buy:hover { opacity: 0.85; }

.btn-buy-price {
  font-family: 'Fraunces', serif;
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  border-right: 1px solid rgba(10,10,10,0.25);
  padding-right: 1.25rem;
}

.btn-buy-label {
  font-size: 0.9rem;
}

.thebook-guarantee {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-2);
}

/* Mobile */
@media (max-width: 768px) {
  .hero {
    padding: 7rem 1.5rem 4rem;
  }

  .thebook-inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .manifesto,
  .thebook,
  .philosophy,
  .closing {
    padding: 4rem 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }

  .book-mock {
    max-width: 200px;
  }
}